Enjolras is waiting at an out-of-the-way table with a cup of coffee, a book by Karl Marx, and several sheets of paper on which he's been taking notes. (This futuristic ink that doesn't require blotting paper or sand is really astonishingly convenient.)

The book has his attention; nonetheless, he's been keeping an eye on the room for Dr. Tam's arrival. When he sees him, he lifts a hand in greeting.

The book gets set aside, and the notes moved to the bottom of the stack of paper.